87838557179 has 2 divisors, whose sum is σ = 87838557180. Its totient is φ = 87838557178.

The previous prime is 87838557173. The next prime is 87838557193. The reversal of 87838557179 is 97175583878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87838557179 - 2¹² = 87838553083 is a prime.

It is a super-2 number, since 2×87838557179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (87838557173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43919278589 + 43919278590.

It is an arithmetic number, because the mean of its divisors is an integer number (43919278590).

Almost surely, 2^87838557179 is an apocalyptic number.

87838557179 is a deficient number, since it is larger than the sum of its proper divisors (1).

87838557179 is an equidigital number, since it uses as much as digits as its factorization.

87838557179 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118540800, while the sum is 68.

The spelling of 87838557179 in words is "eighty-seven billion, eight hundred thirty-eight million, five hundred fifty-seven thousand, one hundred seventy-nine".